On few occasions now we have noticed that a server becomes inaccessible from others in the same domain. Server can ping the local domain controllers, but nothing else. When we run the powershell command to check the status of the VLAN, we see that it is configured correctly to "Community 2,10".
We have found that way around it is by running the command below to re-apply the same settings:
Set-VMNetworkAdapterVlan -VMName 'servername' -Community -PrimaryVlanId 2 -SecondaryVlanIdList 2,10
As soon as we do this, server becomes accessible once again. Host is running Windows 2012 R2 clustered server and we have seen this on VM's running different Server OS's (2003, 2008, 2008 R2).
Just wanted to check and see if anyone else have experienced something similar and if there is a way around it.
Thanks.